Window-fastener.



F. H. NEWGOMB.

WINDOW FASTENER. VAPPLIOATION FILED JUNE 23, 1909. RENEWED MAR. 18, 1914.

Patented Apr. 28, 1914.

witnesses" 10. D. 5141mm fez COLUMBIA PLANDGRAPH (IO-.WASHINGTDV n r UNITED STATES PATENT OF FRANK H. NEWCOMB, OF BROOKLYN, NEW YORK.

WINDOW-FASTENER.

Application filed June 23, 1909, Serial No. 503,941. Renewed March 18, 1914.

Specification of Letters Patent.

Patented Apr. 28, 1914.

Serial No. 825,680.

To 0Z1 40720121 it may concern Be it known that I, FRANK H. Nnwooitn, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Window-Fasteners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in window fasteners.

The object of the present invention is to provide a fastener of the character mentioned which shall be readily applied to and removed from window sashes without the necessity of being fixed thereto, thus rendering the device easily portable and applicable to different windows; one which is exceedingly simple in construction, and thus capable of production at a low figure, and one which, when applied to a window, will effectually hold the sash thereof at any de sired point so that, whether partially opened or entirely closed, unauthorized operation of the sash will be prevented and the sash held locked in the position to which adjusted, movement of the sash beyond the point limited by the fastener being preeluded.

Having these general objects in view, and others that will appear as the nature of the improvements is better understood, the invention. consists substantially in the novel construction, combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawingsFigure 1 is a side elevation of a window fastener constructed in accordance with the present invention, and illustrated in applied position. Fig. 2 is a top plan view thereof. Fig. 3 is a view similar to Fig. 1, the fastener being removed from the window and viewed from the opposite side to that illustrated in Fig. 1. Fig. 4 is a face elevation of the fastener. Fig. 5 is a top plan view of a slightly modified form thereof. Figs. 6, 7 and 8 are face elevations of other forms of the engaging shoe. Fig. 9 is a top plan view of the form of engaging shoe illustrated in Fig. 7. Fig. 10 is a sectional plan view thereof.

Referring in detail to the drawings, the numeral 1 designates the engaging shoe of the herein-described fastener. This shoe is preferably formed of metal that is bent at its central portion to provide a lug 2, and pivotally connected to said lug, as at 3, is a pair of locking levers 4. Each of these levers is provided at its free end with a foot 5, said feet projecting laterally to one side of the levers and beyond the side of the shoe 1, the contiguous edges of said feet being sharpened to provide knife edges 6, designed to take into the frame of the window when the fastener is in applied position. The levers 4 are connected by a spring 7, preferably of spiral formation, whereby said levers are drawn toward each other, and when placed in spread position, as when applied to a window, the tension of the spring is exerted to urge the knife edges 6 into the frame. By referring to Fig. 2, it will be observed that each of the levers 4, at a point adjacent to their pivotal connection with the lug 2, is provided with an offset 8, whereby they are positioned at opposite sides of the lug 2, but the bodies of the levers are arranged in substantially the same vertical plane.

To enable the shoe 1 to firmly engage the sash to which it is applied said shoe is provided at its marginal edges with a plurality of teeth 9, which penetrate the window sash, thereby holding the shoe 1 in engagement therewith, and preventing the sash moving over the face of the shoe.

By referring to Fig. 5, wherein a slightly modified form of the fastener is disclosed, it will be noted that the levers 4, in this particular form, are not provided with the offsets 8. Therefore, the levers 4 are positioned in different vertical planes, although their relation to the engaging shoe 1 is unchanged.

In Figs. 6, 7 and 8 are disclosed other forms of the engaging shoe. The form illustrated in Fig. 6 embodies a plurality of teeth 10 that extend across the entire face of the shoe; Fig. 7 embodies a plurality of teeth at the central portion of the shoe, and extending throughout the length of the latter, while in Fig. 8 the teeth are arranged at the marginal edges of the shoe, but these teeth are of broader gage than the teeth illustrated in the form disclosed in Figs. 1 to 4. The forms of shoes shown in Figs. 6, 7 and 8 are also made in solid form, in contradistinction to the bent formation of the shoe as illustrated in Figs. 1 to 4, which will appear by reference to Fig. 9. Hence, the log 2 of the forms illustrated in Figs. 6, 7 and S is a solid construction, and not formed by the sides of the shoe being bent upon each other, as in Fig. 1.

In the use of the herein-described fastener the shoe 1 is placed so that the teeth thereof impinge against the upper sash. Before this, if it is desired that the upper sash shall be held in partially open position, the upper sash placed at the point where it is desired the same shall be held. After so positioning the engaging shoe the foot I of one of the locking levers it is placed. in the guide in which the lower sash works, whereupon the other lever l; is moved away from. the first lever, against the tension of the spring 7, and its foot inserted into the groove referred to. immediately upon pressure being relieved from the levers the tension of the spring 7 acts to draw the lovers together, and in this movement the knife edges 6 take into the window frame, thus securely holding the fastener in applied position. it will be umlerstood, of course, that in so applying the fastener its point of application to the upper sash will be determined by whether or not the lower sash is to remain partially open, or entirely closed. if the lower sash is to remain partially open, the fastener, ohvionsl y, will be applied to the upper sash so that the lower sash may be raised to the desired extent, but in this movement of the lower sash the same will be limited by the fastener, and while the lower sash. with the fastener in applied position, may he lowered, it is impossible to raise the same beyond the point at which the fastener is applied, so that unauthorized operation of the lower sash, as well as similar operation of the upper sash, is entirely precluded. The sashes, therefore, remain in locked position, and their movement beyond the point of application of the fastener can esa-nee only be obtained by removal of the fastener from the sash and frame.

*laving thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. A portable window fastener, comprising an engaging shoe provided at one of its faces with means to engage a window sash, a plurality of locking levers pivotally con nected to said shoe at its opposite face, and means for tensioning said levers relatively to each other to hold the fastener in applied position.

2. A portable window fastener, comprising an engaging shoe provided at one of its faces with means to engage a window sash, and having at its other face a projecting lug, aplurality of locking levers pivotally connected to said lug, and each provided with a foot having a knife edge adapted to en the window frame when the fastener is in applied position, the feet of the locking levers projecting laterally to one side thereof and beyond. the side of the shoe, and means connected to said levers for tensioning the latter relatively to each other to hold the fastener in applied position.

A portable window fastener, comprising an engaging shoe provided at one of its faces with means to engage a window sash, a plurality of locking levers pivotally connected to said shoe at its opposite face, each of said levers provided with a knife-edged bearing surface upon its free end, and means for tensioning said levers relatively to each other to hold the fastener in applied position,

In testimony whereof I atiix my signature, in the presence of two witnesses.

FRANK H. NElVCOllJIB.

lVitnesses Ciiaimns D. ROZNEYN, \VILLIAM lVoons.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, -f/V'ashington, D. C. 

